Want to quiet some drone
My current setup (THIS IS ON A GXP):
Kooks mids, HF Cats back thru resonators and an x-pipe....then STRAIGHT PIPES from axle back.
It's amazingly quiet except at startup and WOT. The problem ? Highway drone. I've been bolting the stock GXP axle-backs on for road trips, but they are just too quiet otherwise. So I'm thinking that Solo Machs (with J-pipes ?) would allow decent sound, but dial back the drone. Then I wouldn't be swapping exhausts before/after each trip. And it would look better than straight pipes I'm sure.
Your thoughts ? I assume the Machs bolt up on a GXP with properly matched tube sizes. Or are the GT and GXP axle-back connections different sizes ?
White-hot G8 GXP...stock stall, NicD tune, Kooks mids, TVS2300
New crate motor Feb 2016
Mar 2017: 12.0 @ 119.5 at Tucson Dragway
Jun 2017: Comp Cam, OEM cats removed
Nov 2017: 11.9 @ 122 at Tucson Dragway, DA = 4600
Jan 2018: Re-tuned for cat removal. Pulley down to 2.8
Jan 2018: 11.7 @ 122.5 at WHP, DA = 1500 bad traction
Dec 2018: 11.7 @ 121 at Tucson Dragway, DA 4000